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Generalized sidelobe canceller based combined acoustic feedback- and noise cancellation
- Source :
-
Signal Processing . Mar2008, Vol. 88 Issue 3, p571-581. 11p. - Publication Year :
- 2008
-
Abstract
- Abstract: We propose a combination of the well-known generalized sidelobe canceller (GSC) or Griffiths–Jim beamformer, and the so-called PEM-AFROW algorithm for joint estimation under closed loop conditions of a room impulse response and a desired speech signal model, resulting in a system for multimicrophone combined acoustic feedback and noise cancellation. For specific applications (e.g. public address systems), the computational complexity may be reduced dramatically compared to state-of-the-art proactive acoustic feedback cancellers, while feedback cancellation performance is only marginally degraded. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 01651684
- Volume :
- 88
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Signal Processing
- Publication Type :
- Academic Journal
- Accession number :
- 27639516
- Full Text :
- https://doi.org/10.1016/j.sigpro.2007.08.018